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bekas [8.4K]
3 years ago
13

A number cube numbered 1-6 is rolled 30 times and lands on an even number 18 times. How

Mathematics
1 answer:
nekit [7.7K]3 years ago
7 0

Answer:

The frequency is 3 more than expected.

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I will give brainlyiest, 5 stars!, a thanks and also a friend request if you get this right
Angelina_Jolie [31]

Answer:

the answer is n=>8

Step-by-step explanation:


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Which choice is equivalent to the fraction below when x is an appropriate value? Hint: Rationalize the denominator and simplify.
densk [106]
\frac{3}{3- \sqrt{6x} } = \frac{3}{3- \sqrt{6x} } \times \frac{3+ \sqrt{6x} }{3+ \sqrt{6x} }  \\ = \frac{3(3+ \sqrt{6x})}{3^2-( \sqrt{6x} )^2} = \frac{3(3+ \sqrt{6x})}{9-6x} \\ =\frac{3(3+ \sqrt{6x})}{3(3-2x)}=\frac{3+ \sqrt{6x}}{3-2x}
6 0
3 years ago
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Triangle XYZ is isosceles. The measure of the vertex angle, Y, is twice the measure of a base angle.
Alik [6]

Answer:

The answer is A, the measure of angle Z is 45°.

Step-by-step explanation: According to base angle theorem for iscoscles triangles, the base angles must be the same angle measure if the sides opposite to them are congruent. Since it is an iscoceles triangle, they are automatically congruent. This means that Y is 90 degrees. This fits into triangle sum theorem because if Z is 45 degrees, than x is also 45 degrees making a viable triangle. This means that this is the only one that actually applies. B is wrong because of triangle sum theorem, C is wrong because of triangle sum theorem, and D is wrong because of the SSS postulate and CPCTC.

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A triangle where one angle 120 degrees and another 50 degrees
hram777 [196]

I do not understand what you are asking for

I am assuming you want the missing angle, in this case it is 10

Triangle Sum Theorem states that a triangle is equal to 180 degrees

120+50 = 170

180-170

= 10

7 0
3 years ago
Rectangle A has a length of 12 and width of 8. Rectangle B has a length of 15 and a width of 10.
navik [9.2K]

Answer:

rectangles are similar figures, thus if scaled copies of each other then the ratios of corresponding sides must be equal

compare ratios of lengths and widths

rectangles A and B

k =  =  ← ratio of lengths

k =  =  ← ratio of widths

scale factors are equivalent, hence rectangle A is a scaled copy of B

rectangles C and B

k =  =  ← ratio of lengths

k =  =  ← ratio of width

scale factors (k ) are not equal, hence C is not a scaled copy of B

rectangles A and C

k =  =  ← ratio of lengths

k =  ← ratio of widths

the scale factors are not equal hence A is not a scaled copy of C

Step-by-step explanation:

6 0
3 years ago
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